RU2010129797A - METAL CHLORIDE RESTORATION METHOD - Google Patents
METAL CHLORIDE RESTORATION METHOD Download PDFInfo
- Publication number
- RU2010129797A RU2010129797A RU2010129797/02A RU2010129797A RU2010129797A RU 2010129797 A RU2010129797 A RU 2010129797A RU 2010129797/02 A RU2010129797/02 A RU 2010129797/02A RU 2010129797 A RU2010129797 A RU 2010129797A RU 2010129797 A RU2010129797 A RU 2010129797A
- Authority
- RU
- Russia
- Prior art keywords
- mixture
- temperature
- hydrogen
- powder mixture
- silver
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 13
- 229910001510 metal chloride Inorganic materials 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract 20
- 239000007789 gas Substances 0.000 claims abstract 10
- 239000000843 powder Substances 0.000 claims abstract 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract 8
- 239000001257 hydrogen Substances 0.000 claims abstract 8
- 238000001035 drying Methods 0.000 claims abstract 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract 4
- HRZXZMDJGDZSJF-UHFFFAOYSA-M chloro(hydrido)silver Chemical compound [AgH]Cl HRZXZMDJGDZSJF-UHFFFAOYSA-M 0.000 claims abstract 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910052709 silver Inorganic materials 0.000 claims abstract 4
- 239000004332 silver Substances 0.000 claims abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 4
- 229910021607 Silver chloride Inorganic materials 0.000 claims abstract 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims abstract 2
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims abstract 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/02—Obtaining noble metals by dry processes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
- C01B7/035—Preparation of hydrogen chloride from chlorides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/021—Obtaining nickel or cobalt by dry processes by reduction in solid state, e.g. by segregation processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
1. Способ извлечения серебра из порошкообразной смеси, содержащей хлорид серебра, который включает следующие этапы: ! (a) установление температуры порошкообразной смеси от 70°С до 80°С; ! (b) пропускание газа, который содержит водород, через порошкообразную смесь в течение предварительно определенного периода времени, составляющего по меньшей мере четыре часа, с образованием гидрида хлорида серебра; и ! (c) повышение температуры порошкообразной смеси по меньшей мере до 400°С для проведения диссоциации гидрида хлорида серебра с образованием серебра и высвобождением газообразного хлороводорода. !2. Способ по п.1, который включает первоначальный этап сушки смеси при температуре, составляющей до 100°С, в атмосфере водородсодержащего газа. ! 3. Способ по п.2, в котором сушку осуществляют до достижения содержания воды, составляющего <0,1% H2O, и который после сушки, перед выполнением этапа (b), включает этап измельчения комков соли серебра. ! 4. Способ по п.1, который включает этап образования в порошкообразной смеси множества ходов для газа, позволяющих осуществлять распределение водородсодержащего газа в смеси при проведении этапа (b). ! 5. Смесь по п.1, в которой при проведении этапа (с) температуру повышают по меньшей мере до 600°С. ! 6. Смесь по п.1, в которой при проведении этапа (с) газообразный хлороводород собирают в воде. ! 7. Способ по п.1, в котором водородсодержащий газ представляет собой смесь H2/N2 в отношении 50% / 50% (об./об.). ! 8. Способ по п.1, который осуществляют при атмосферном давлении, и в котором при проведении этапа (с) температуру повышают пошагово. 1. A method for extracting silver from a powder mixture containing silver chloride, which comprises the following steps:! (a) setting the temperature of the powder mixture from 70 ° C to 80 ° C; ! (b) passing a gas that contains hydrogen through the powder mixture for a predetermined period of at least four hours to form silver chloride hydride; and! (c) raising the temperature of the powder mixture to at least 400 ° C. to dissociate silver chloride hydride to form silver and release gaseous hydrogen chloride. ! 2. The method according to claim 1, which includes the initial stage of drying the mixture at a temperature of up to 100 ° C, in an atmosphere of a hydrogen-containing gas. ! 3. The method according to claim 2, in which drying is carried out until a water content of <0.1% H2O is reached, and which, after drying, before performing step (b), comprises the step of grinding silver salt lumps. ! 4. The method according to claim 1, which includes the step of forming a plurality of gas strokes in the powder mixture, allowing distribution of the hydrogen-containing gas in the mixture during step (b). ! 5. The mixture according to claim 1, in which during step (c) the temperature is increased to at least 600 ° C. ! 6. The mixture according to claim 1, in which, when carrying out step (c), gaseous hydrogen chloride is collected in water. ! 7. The method according to claim 1, in which the hydrogen-containing gas is a mixture of H2 / N2 in the ratio of 50% / 50% (vol./vol.). ! 8. The method according to claim 1, which is carried out at atmospheric pressure, and in which during step (c) the temperature is increased stepwise.
Claims (8)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA2007/11234 | 2007-12-10 | ||
| ZA200711234 | 2007-12-10 | ||
| PCT/ZA2008/000124 WO2009076684A2 (en) | 2007-12-10 | 2008-12-09 | Recovery of metal, espacially silver, from metal chlorides by hydrogen reduction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2010129797A true RU2010129797A (en) | 2012-01-27 |
| RU2481408C2 RU2481408C2 (en) | 2013-05-10 |
Family
ID=40409862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2010129797/02A RU2481408C2 (en) | 2007-12-10 | 2008-12-09 | Method of reducing metal chloride |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US8377166B2 (en) |
| EP (1) | EP2235223B1 (en) |
| JP (1) | JP2011508071A (en) |
| CN (1) | CN101983248B (en) |
| AT (1) | ATE531826T1 (en) |
| AU (1) | AU2008334953B2 (en) |
| CA (1) | CA2708625A1 (en) |
| MX (1) | MX2010006407A (en) |
| PL (1) | PL2235223T3 (en) |
| RU (1) | RU2481408C2 (en) |
| WO (1) | WO2009076684A2 (en) |
| ZA (1) | ZA201004380B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8834830B2 (en) * | 2012-09-07 | 2014-09-16 | Midwest Inorganics LLC | Method for the preparation of anhydrous hydrogen halides, inorganic substances and/or inorganic hydrides by using as reactants inorganic halides and reducing agents |
| CN109536726A (en) * | 2019-01-14 | 2019-03-29 | 北京科技大学 | A kind of recovery method of argentiferous dead catalyst |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3586497A (en) * | 1968-06-18 | 1971-06-22 | Percival Gravenor | Reduction of metal chloride with hot hydrogen |
| ZA75593B (en) * | 1975-01-29 | 1976-09-29 | Nat Inst Metallurg | A process for the treatment of mixtures of platinum group metals and gold |
| US4039324A (en) * | 1975-11-14 | 1977-08-02 | Cyprus Metallurgical Processes Corporation | Fluidized hydrogen reduction process for the recovery of copper |
| US4388109A (en) * | 1980-05-30 | 1983-06-14 | Sherritt Gordon Mines Limited | Process for the production of silver powder from silver chloride, sulphate or sulphide |
| DE3279625D1 (en) * | 1981-09-16 | 1989-05-24 | Matthey Rustenburg Refines | Recovery of platinum group metals from scrap and residues |
| JPS58171506A (en) * | 1982-04-01 | 1983-10-08 | Sumitomo Metal Mining Co Ltd | Manufacture of fine metallic nickel powder |
| DE4214720C2 (en) * | 1992-05-04 | 1994-10-13 | Starck H C Gmbh Co Kg | Device for the production of fine-particle metal and ceramic powder |
| RU2038394C1 (en) * | 1993-09-28 | 1995-06-27 | Крылов Владимир Владимирович | Method for extraction of silver from refining intermediate products containing silver chloride |
| RU2094506C1 (en) * | 1996-05-28 | 1997-10-27 | Институт химии и технологии редких элементов и минерального сырья Кольского научного центра РАН | Method of metallic silver producing |
| RU2130504C1 (en) * | 1998-02-16 | 1999-05-20 | Санкт-Петербургский филиал Закрытое акционерное общество Научно- производственная фирма "Башкирская золотодобывающая компания" | Method of producing silver from its chloride |
| US6090179A (en) * | 1998-07-30 | 2000-07-18 | Remptech Ltd. | Process for manufacturing of metallic power |
| EA003346B1 (en) * | 2000-01-28 | 2003-04-24 | Юмикор | Process for refining silver bullion with gold separation |
| EP1690617B1 (en) * | 2003-11-05 | 2018-01-10 | Ishihara Chemical Co., Ltd. | Process for production of ultrafine alloy particles |
| BRPI0418785A (en) * | 2004-04-27 | 2007-10-09 | Falconbridge Ltd | production of active nickel powder and its transformation into nickel carbonyl |
| RU2265673C1 (en) * | 2004-05-05 | 2005-12-10 | Федеральное государственное унитарное предприятие "Научное конструкторско-технологическое бюро "Феррит" | Method of production of silver from silver chloride by reduction with gaseous hydrogen |
| RU2309998C2 (en) * | 2005-09-07 | 2007-11-10 | Общество с ограниченной ответственностью НАУЧНО-ПРОИЗВОДСТВЕННАЯ ФИРМА "ГЕРО" (ООО НПФ "ГЕРО") | Method for producing silver from silver chlorides at reducing with use of gaseous hydrogen |
-
2008
- 2008-12-09 AU AU2008334953A patent/AU2008334953B2/en not_active Expired - Fee Related
- 2008-12-09 US US12/747,242 patent/US8377166B2/en not_active Expired - Fee Related
- 2008-12-09 CN CN2008801266289A patent/CN101983248B/en not_active Expired - Fee Related
- 2008-12-09 MX MX2010006407A patent/MX2010006407A/en active IP Right Grant
- 2008-12-09 WO PCT/ZA2008/000124 patent/WO2009076684A2/en active Application Filing
- 2008-12-09 AT AT08859591T patent/ATE531826T1/en active
- 2008-12-09 PL PL08859591T patent/PL2235223T3/en unknown
- 2008-12-09 JP JP2010538238A patent/JP2011508071A/en active Pending
- 2008-12-09 CA CA2708625A patent/CA2708625A1/en not_active Abandoned
- 2008-12-09 EP EP08859591A patent/EP2235223B1/en not_active Not-in-force
- 2008-12-09 RU RU2010129797/02A patent/RU2481408C2/en not_active IP Right Cessation
-
2010
- 2010-06-22 ZA ZA2010/04380A patent/ZA201004380B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN101983248B (en) | 2013-07-17 |
| ATE531826T1 (en) | 2011-11-15 |
| WO2009076684A2 (en) | 2009-06-18 |
| US8377166B2 (en) | 2013-02-19 |
| AU2008334953B2 (en) | 2013-09-19 |
| ZA201004380B (en) | 2012-01-25 |
| CN101983248A (en) | 2011-03-02 |
| AU2008334953A1 (en) | 2009-06-18 |
| CA2708625A1 (en) | 2009-06-18 |
| RU2481408C2 (en) | 2013-05-10 |
| JP2011508071A (en) | 2011-03-10 |
| US20100307291A1 (en) | 2010-12-09 |
| PL2235223T3 (en) | 2012-06-29 |
| WO2009076684A3 (en) | 2009-07-30 |
| EP2235223B1 (en) | 2011-11-02 |
| MX2010006407A (en) | 2011-04-26 |
| EP2235223A2 (en) | 2010-10-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20131210 |